
Germination des Grains de Pollen

Quiz
•
Science
•
9th - 12th Grade
•
Hard
Ibtissam Firdaousse
FREE Resource
10 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
Décrivez les grains de pollen après 2 jours dans les 2 boites.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Proposer des hypothèses qui explique la germination des grains de pollen.
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3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Quelle sont les étapes de germination des grains de pollen?
Formation des tubes polliniques
Elongations de tube pollinique
Formation de deux anthérozoïdes
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Comment se fait la fécondation chez les angiospermes?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
En utilisant un schéma présenter les différents étapes de la double fécondation chez angiospermes?
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Nommer les différentes structures impliqués dans ce mécanisme?
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7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le grain de pollen se fixe au stigmate grâce à une substance gluante (qui colle)
Vrai
Faux
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